valve JAGUAR X308 1998 2.G Repair Manual

8. Re
fit the variable valve timing
solenoids. Refer to Operation
18.30.63.
9. Refit the camshaft covers. Refer to Operations 12.29.43.and
12.29.44.
10. Refit the on-plug ignition coils and coil covers. Refer to
Operation 18.20.41 and 18.20.42.
11. Refit the purge valve. Refer to Operation 17.45.01.

12 . F
it the intake tube / air flow meter / air cleaner cover
assembly.
1. Fit a new rubber seal; air in take tube to throttle body.

2.
Fit the intake tube / air
flow meter / air cleaner cover
assembly.

13 . R
econnect the air cleaner cover.
F
it
the five clips which secu
re the air cleaner cover.

14. Co
nnect the intake tube to the throttle body.
1. Connect the intake tube to the throttle body.
2. Fit the two bolts which secure the intake tube to the throttle body.

15
.
Disconnect the air cleaner cover.
R
elease the five clips which se
cure the air cleaner cover.
16. Disconnect the air flow meter multi-plug.

17
.
Remove the intake tube / air flow meter / air cleaner cover
assembly.
1. Remove the intake tube / air flow meter / air cleaner
cover assembly.
2. Remove and discard the ru bber seal; air intake tube
to throttle body.
18. Remove the purge valve, fro m the evaporative control
system. Refer to Operation 17.45.01.
19. Remove the on-plug ignition coils. Refer to Operation
18.20.41 and 18.20.42.
20. Remove the camshaft covers. Refer to Operations 12.29.43
and 12.29.44.
21. Remove the variable valve ti ming solenoids. Refer to
Operation18.30.63.
22. Disconnect the engine harness retaining clips from the timing
cover.

7. Reposition and secure the engine harness clips to the timing
cover.
8. Refit the variable valve timing solenoids. Refer to Operation
18.30.63.
9. Refit the camshaft covers. Refer to Operations 12.29.43.and
12.29.44.
10. Refit the on-plug ignition coils and coil covers. Refer to
Operation 18.20.41 and 18.20.42.
11. Refit the purge valve. Refer to Operation 17.45.01.
12. Fit the intake tube / air flow meter / air cleaner cover
assembly.
1. Fit a new rubber seal; air in take tube to throttle body.

2. Fit the intake tube / air flow meter / air cleaner cover
assembly.

2. Fit the camshaft caps to their respective locations (5 to 9 from the front) and in the correct orientation
(arrow to front of engine).
3. Fit and tighten the cap securing bolts. Tighten evenly,
in stages, to 9 - 11 Nm.
3. Fit the camshaft locking tool 303 - 530 (fitted for following
operation) align the camshaft as necessary.
4. Refit Exhaust Camshaft Sprocket . Refer to Operation 12.65.74.
5. With the camshaft (303 - 530) and crankshaft (303 - 531)
setting tools removed, after the previous operation, adjust the
valve clearances on the exhaus t camshaft. refer to Operation
12.29.48.
6. Move the engine compartment co ver from the service position
and connect the gas struts.
7. Remove the paint protection sheets and close the cover.
8. Connect the battery and fit the battery cover.
Refer to the Battery Reconnection Procedure 86.15.15.

2. Fit the camshaft caps to their respective locations (5 to 9 from the front) and in the correct orientation
(arrow to front of engine).
3. Fit and tighten the cap securing bolts. Tighten evenly,
in stages, to 9 - 11 Nm.
3. Fit the camshaft locking tool 303 - 530 (fitted for following
operation) align the camshaft as necessary.
4. Refit Exhaust Camshaft Sprocket . Refer to Operation 12.65.73.
5. With the camshaft (303 - 530) and crankshaft (303 - 531)
setting tools removed, after the previous operation, adjust the
valve clearances on the exhaus t camshaft. refer to Operation
12.29.48.
6. Move the engine compartment co ver from the service position
and connect the gas struts.
7. Remove the paint protection sheets and close the cover.
8. Connect the battery and fit the battery cover.
Refer to the Battery Reconnection Procedure 86.15.15.

Installation


12. Remove the bolt which secures the sprocket to the exhaust
camshaft.
Move the sprocket forward from the camshaft boss.
Remove the sprocket and leav e the chain resting on the
cylinder head.
13. Clean and inspect all relevant components.

1. Push the tensioner piston into the body to provide clearance
for installing. Tensioner fitted to cylinder head.
1. Insert a thin rigid wire th rough the hole in the end of
the tensioner piston to displace the ball from the non-
return valve seat.
2. With the wire in position, press the piston fully into the tensioner body.
Remove the wire.

2. Install the sprocket to the secondary chain.
1. With the sprocket installe d to the chain, temporarily
position (do not install the securing bolt) the sprocket
onto the camshaft.
2. Adjust the position of the sprocket within the chain to
allow the chain tensioning tool 303-532 to be
approximately vertical, as shown.
3. Install the cams haft sprocket.
Apply force to the tool (303-532) in an anti-clockwise
direction to tension the chain on its drive side.
Whilst applying the opposing force to the sprocket and
chain, tighten the sprocket securing bolt to 115-125 Nm.
Remove the chain tensioning tool.

Installation

removing the bolt which secures the sprocket. 1. Place a flat piece of stee l strip along the timing cover
horizontal jointing face, adjacent to the exhaust
camshaft sprocket.
2. Secure the steel strip in place with adhesive tape.

11. A ball-ended hexagon drive bit is required to remove the
sprocket securing bolt. A suitable tool is available from Snap On as (FABLM10E) Long Series 10mm AF.

12. Remove the bolt which secures the sprocket to the exhaust
camshaft.
Move the sprocket forward from the camshaft boss.
Remove the sprocket and leav e the chain resting on the
cylinder head.
13. Clean and inspect all relevant components.

1. Push the tensioner piston into the body to provide clearance
for installing. Tensioner fitted to cylinder head.
1. Insert a thin rigid wire th rough the hole in the end of
the tensioner piston to displace the ball from the non-
return valve seat.
2. With the wire in position, press the piston fully into the tensioner body.
Remove the wire.
2. Install the sprocket to the secondary chain.
1. With the sprocket installe d to the chain, temporarily
position the sprocket onto the camshaft.
2. Adjust the position of the sprocket within the chain to
allow the chain tensioning tool 303-532 to be
approximately vertical, as shown.

Installation


12. Remove the bolt which secures the sprocket to the exhaust
camshaft.
Move the sprocket forward from the camshaft boss.

13. Remove the secondary chain tensioner. The tensioner piston
cannot be pushed into the body with the assembly in position.
1. Remove the two bolts which secure the tensioner.
Lift the tensioner, sprocket (release it fully from the
camshaft) and ch ain assembly.
2. Remove the tensioner rearward from between the chain.
14. Remove the sprocket and leav e the chain resting on the
cylinder head.
15. Clean and inspect all relevant components.

1. Install the sprocket to the secondary chain.
1. With the sprocket installe d to the chain, temporarily
position (do not install the securing bolt) the sprocket
onto the camshaft.
2. Adjust the position of the sprocket within the chain to
allow the chain tensioning tool 303-532 to be
approximately vertical, as shown.
Remove the chain tensioni ng tool; during future
operations, do not move the sprocket within the chain.
2. Push the tensioner piston into the body to provide clearance
for installing.
1. Insert a thin rigid wire th rough the hole in the end of
the tensioner piston to displace the ball from the non-
return valve seat.

allow the chain tensioning tool 303-532 to be approximately vertical, as shown.
Remove the chain tensioni ng tool; during future
operations, do not move the sprocket within the chain.

2. Push the tensioner piston into the body to provide clearance
for installing.
1. Insert a thin rigid wire th rough the hole in the end of
the tensioner piston to displace the ball from the non-
return valve seat.
2. With the wire in position, press the piston fully into the tensioner body.
Remove the wire.

3. Install the chain tensioner between the chain path.
1. Reposition the sprocket, still captive in the chain, upwards for access.
2. Install the chain tensioner between the sprockets.
Position the cam sprocket, chain and tensioner assembly
into position and locate the sprocket onto the camshaft
spigot.

4. Install the chain tensioner to the engine.
1. Fully seat the sprocket onto the camshaft and install the securing bolt, hand tight.
2. Install the two bolts which secure the tensioner and tighten to 10-14 Nm.
5. Install the cams haft sprocket.
Install the chain tensioner tool 303-532 to the sprocket
holes.
Apply force to the tool in an anti-clockwise direction to
tension the chain on its drive side.

1. Fit the camshaft to position in the cylinder head, with the timing flats uppermost.
2. Fit the camshaft caps to their respective locations (0 to 4 from the front) and in the correct orientation
(arrow to front of engine).
3. Fit and tighten the cap securing bolts. Tighten evenly,
in stages, to 9 - 11 Nm.
3. Fit the camshaft locking tool 303 - 530 (fitted for following
operation) align the camshaft as necessary.
4. Refit the VVT Unit to the A-Bank. Refer to Operation 12.65.71.
This also includes the VVT Bu sh Carrier Assembly, Primary
Chain and Tensioner.
5. With the camshaft (303 - 530) and crankshaft (303 - 531)
setting tools removed, after the previous operation, adjust the
valve clearances on the inlet camshaft. refer to Operation
12.29.48.
6. Refit the Timing Cover. Re fer to Operation 12.65.01.
7. Move the engine compartment co ver from the service position
and connect the gas struts.
8. Remove the paint protection sheets and close the cover.
9. Connect the battery and fit the battery cover.
Refer to the Battery Reconnection Procedure 86.15.15.